A needling machine includes a pallet (1) and an upper pallet (2) that define a passage for a web (3). A needle plate (7) supported by a slide bar (11) moves back and forth between a maximum puncture position (7a) and a retracted position (7b), and the movement of the needle plate is comprised of a slide bar (11) The crank link mechanism of the hinge (19) of the phase hinge is driven. A sliding bearing (13) remote from the needle plate has a larger diameter than the other sliding bearing, the bearing (13) meshes with the tubular portion (28) of the crank, the connecting rod (19) and the sliding rod (11) The inter-joint links (18) are located within the axial region A, which includes the sliding bearings (13, 14) and the distance therebetween, for which purpose the chain is disposed within the tubular portion. The wear of the sliding bearing, the external force and its vibration are thus reduced.
Flow Measurement
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